Penn SICCA Follow-up Study

This study will involve the collection of follow-up data for patients who previously participated in the Sjogren's International Clinical Collaborative Alliance (SICCA) study at the University of Pennsylvania. Clinical data and specimens will be collected from subjects with objective evidence of dry eye who were or were not diagnosed with Sjogren's syndrome at the time of their initial participation in the SICCA study. Specimens will be collected from participants which will include tears, saliva, whole blood, serum, DNA and possible labial minor salivary gland biopsies when indicated. All individuals will participate in a standard evaluation protocol including an oral, ocular and physical examination, objective tests for dry eyes and dry mouth and, whenever necessary, a labial minor salivary gland biopsy. The biopsy requirement is waived for those who have already had positive lip biopsies in the past.